Analysis

  • max time kernel
    140s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-06-2024 11:33

General

  • Target

    01efee1f8ba0f9c17dfb746326ab908c_JaffaCakes118.dll

  • Size

    383KB

  • MD5

    01efee1f8ba0f9c17dfb746326ab908c

  • SHA1

    d34b9682536ccfb29769cdc0f7cfc4028f61702f

  • SHA256

    659dc79f8a18c659e6388d43f961532d496de9a26b5ee4d350e40f8454720db3

  • SHA512

    8d828a022cb6a491b124a89f61123f9a99a071a1e3db9217359ffdb0b9b3549c773de22cf3f983f1f232f2fe38f3e4dccd8ea87cbc69eb928e6d4f59e72514bf

  • SSDEEP

    6144:WiE8HElJNKlrbLcbR/Nq8RyRn7WjwHaRHculd/c8QHjx9QL6lETll+sydJf+w6:WiE8HEvc1bLm88RyB7GwHaRHVldE8QXG

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies Internet Explorer settings 1 TTPs 38 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01efee1f8ba0f9c17dfb746326ab908c_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\01efee1f8ba0f9c17dfb746326ab908c_JaffaCakes118.dll
      2⤵
      • Adds Run key to start application
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:4680
  • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
    "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
    1⤵
      PID:1756
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4300
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4300 CREDAT:17410 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2784
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1416,i,15316930299780304231,7592852768794498680,262144 --variations-seed-version --mojo-platform-channel-handle=4500 /prefetch:8
      1⤵
        PID:4976

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FUP7PRY6\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee